LiftMaster LA400UL Single Swing Gate Opener w/ MyQ Technology

Price: $1,198.90

Bookmark and Share

Chat with a live representative or Send us an email


Instant Price Match: Purchase from an authorized dealer of Liftmaster to ensure your warranty is valid! Every Authorized Liftmaster dealer must advertise at their minimum advertised price (MAP). You will always see the minimum advertised price on our site, however we shop our competitors daily. When you click the “instant price match” button above or call (813) 792-9726 we will give you today’s price, with shipping included.

   Product Details
  • Gate Opener At a Glance
  • Gate Opener Description
  • D­IY Installation
  • Gate Opener Features
  • Included with Gate Opener from Manufacturer
  • Gate Exclusive Product and DIY Additions
  • Tools & Supplies for Installation
  • Words from Senior Application Engineer
  • Gate Opener Dual Options
  • Customer Installations
  • Customer Testimonials
  • Factory Visit Updates
  • Product Media

  •    Gate Opener At a Glance
    The Liftmaster / Chamerlain LA-400 gate opener is a residential and light commercial linear actuator.
    • Gate Materials: Wood, Steel, Aluminum, Vinyl, Chain Link, and others.
    • Weight and length: Up to 16' in length OR 850 lbs
    • Max degree of opening: 100
    • Gate Post or Column size (pull to open): Max 7" x 7" post or gate mounted 4" from the rear face of a column.
    • Push to Open: Yes, setback above does not apply (Not Included)
    • Solar Compatible: Yes
    • Power: 120V Single Phase (Standard control box).
    • Power Wire Specification:

      Power Wire: 120Vac
      Power Wire: 24Vac Transformer

    • Operating Temperature: -4°F (-20°C) to 140°F (60°C)
    • Warranty:2-year manufacturer control board/ 2-year component manufacturer warranty. (Click Here for Warranty Pros and Cons)
    • The manufacturer suggests that professional installation required.

    Liftmaster Award Banner
    topleft topright offers more expert assistance than anyone. If you need help deciding if this gate opener has the abilities that are right for your gate we have live application specialists available 9am - 9 pm EST 7 days a week or try our exclusive gate opener recommendation tool 24 hours/day.
    bottomleft bottomright

       DIY Installation

    <span data-src='/glossary_detail.aspx?id=10851' class='hovertxt'>DIY</span> Install

    For over a decade has been the premier online retailer of gate openers and gate opener accessories. Because of our extensive technical and installation knowledge, we are authorized to sell to the DIY market. If you purchase a LA 400 or LA12 gate opener system from and install it yourself, your warranty eligibility will be recognized by LiftMaster and supported by You can access our trained technical staff 7 days a week from 9 am to 9 pm, EST. The LA 400 and LA 412 can be installed with simple household tools and do not require any specialized tools. Wiring required for the installation is simple and straightforward as it is all low voltage wiring.

    When you DIY install your gate opener system, you will save $1000s of dollars over the life of your gate opener. You will have working knowledge of your gate opener installation and how the gate opener works. This will make it easier for you to troubleshoot your system and perform routine maintenance, if needed in the future.

    top left top right offers more expert assistance than anyone. If you need help troubleshooting or installation support with your gate opener,we have live technical support specialists available 9am - 9 pm EST 7 days a week or try our exclusive gate opener recommendation tool 24 hours/day.
    bottom left bottom right

       Gate Opener Description

    Most people don't even realize the make of their garage door opener because they've never had a problem that required contacting the manufacturer. This kind of reliability is now delivered in their LA-400 gate opener.

    The Liftmaster / Chamberlain LA-400 Single Opener is a low voltage system, eliminating the need to run expensive 110 volt AC power wire to your gate. Simply run 16-gauge low voltage 2-conductor wire to a household outlet within 1,000' of the operator. With the Liftmaster / Chamberlain LA-400's oversized control box you can house 2 batteries to accommodate higher opening cycle situations and extra storage for a power outage. Furthermore, the LA-400 meets the high safety standards of UL 325 listing for a reliable, safe gate opening device.

    Liftmaster has added an extra level of convenience with the integration of the MyQ technology. By simply downloading the MyQ application to your smartphone and connecting the Liftmaster 828LM Internet Gateway (not included), you will be able control your driveway gate openers and other Liftmaster automated doors and gates. The MyQ smartphone application is compatible with all of Liftmaster's line of MyQ enabled devices.

    top left top right is the DIY factor. further adds to most of our gate openers for easier DIY installation. We have developed exclusive components (example: easy adjustable mounting brackets), customized instructions, and offer a full spectrum of accessories to truly cover all aspects of the installation of your gate opener. In addition we have the largest staff of factory trained technicians in the US.
    bottom left bottom right

       Gate Opener Features

    • LARGE, 24V MOTOR - It is one of the largest swing gate motors available for any residential estate gate opener. It is capable of handling driveway security gates up to 850 lbs, which is more than many heavily ornamented electric gates weigh.

    • CONTROL BOARD, EASY READ DIAGNOSTICS - The LED light diagnostic on the control board permits easy diagnostics of problems or missing connections. This allows efficient repair and swift continuation of normal electric gate operation.

    • SOFT START/SOFT STOP - Soft start/soft stop is a feature in which the control board, during the set up process, learns where the opening and closing points are for the swing of the gate. Then during normal operation the gate operator automatically slows the motion of the gate to smoothly meet with the gates destination point. This reduces stress on the gate and operator for extended functionality.

    • BI-PART LATCH - Designed to allow one gate leaf to begin opening or closing independently for those gates that have overlapping leaves.

    • ADJUSTABLE CLOSING TIMER - Set your gate to close between 0 and 120 seconds after reaching the full open position.

    • ELECTRONIC LIMIT SWITCHES - Set the limit switches with just the push of a button for accurate, easy setup.

    • ON BOARD RADIO RECEIVER - It is compatible with a number of wireless remotes and allows operation of a number of devices with one remote - such as the garage door and the gate opener.

    • INPUT TERMINALS - For convenient addition of accessories requiring like loops, sensing devices and controlling devices.

    • QUICK. SAFE AND SECURE MANUAL RELEASE - The LA-400 operator comes with a manual release key that can be used should the power fail and the backup battery is not charged. This ensures that the driveway gate can be opened without damaging or disconnecting any components.

    • HIGHEST LEVEL OF SAFETY - This operator is designed with separate force adjustments for obstructions. If the gate meets an obstruction while it is opening it will reverse to close, and if it is closing it will reverse to open. Additionally, the LA-400 is UL 325 Listed.

    • INCREASED CONVENIENCE - The built in MyQ system will allow you to open your gate right from your smartphone.

    • SOLAR-READY ULTRA-RELIABLE SYSTEM - Simple solar conversion delivers power when you need it most and is extremely power efficient at all other times to maximize solar performance.

    • WIRELESS DUAL-GATE COMMUNICATION - Eliminates expensive conduit costs and unsightly driveway scars.

    • PROGRAMMABLE AUXILIARY RELAYS - Easily add additional features, such as warning lights/alarms.

    • ANTI-TAILGATE - Prevents unauthorized access. Gate will pause when closing as vehicle pulls onto interrupt loop or breaks photo beam. Once vehicle backs up, gate will continue to close.

    • HOMELINK® COMPATIBLE - Version 4 and higher.

    • COMMERCIAL-DUTY CAST ALUMINUM HOUSING WITH HEAVY-DUTY DC MOTOR - Powerful enough to perform in the most demanding applications

    • KEYED MANUAL DISCONNECT - when unlocked, allows gate to be operated manually.

    • INHERENT REVERSING SENSOR - detects obstructions or increased loads. Reverses gate when closing or stops/reverses the gate when opening.

    • FIRE DEPARTMENT COMPLIANCE - allows gate to auto open upon loss of AC power or battery depletion

    • SURGE SUPPRESSION - provides industrial surge and lightning protection against strikes up to 50 feet away.

    • PARTY PASS - allows for the gates to be held open for an extended period of time, ideal for parties.

    top left top right has the resources you need. How do you use your gate opener system once you get it? is the only retailer to give a real answer to this question. We have develop videos for installing many of our gate openers and products and write DIY focused manuals for most gate openers and have individual instructions for each accessory to be installed with each gate opener.
    bottom left bottom right

       Gate Opener Dual Options
    The Liftmaster LA400 with the use of the built-in network communication system 2 single LA400 gate openers can communicate and operate as a dual gate opener system.

    If you need a dual gate opener system, but are unable to run low voltage wire underneath your driveway, you can simply order two single gate opener systems. This will allow you to have a wireless dual gate opener system.

       Included with Gate Opener from Manufacturer
    • Control Box
    • Operator Arm with Power Cable
    • Control Board
    • Photo Eye
    • Batteries (with standard box)
    • Bolt on Brackets
    • Low Voltage Transformer
       Gate Exclusive Product and DIY Additions

    2) LiftMaster one-button Transmitters (811LM)

    DIY Additions:
    Attention: LiftMaster Gate Openers do not come with any remotes from the factory or most other retailers. We give you 2) FREE Lift Master remotes to work with the built in receiver.

    • Order specific customized accessory wiring instructions
    • 360 degree accessories - we can take you through exit, entry, safety, power, and all other minute details to create a fully rounded kit.
    • Free 24/7/365 Installation Support
    • Free 7 day/week Technical Support
    • Largest Number of Certified Techs in America
    • Free assistance to find the right gate opener for your gate
    • Free systems design assistance to match the right accessories to fit your needs.
    • Extremely competitive pricing
    • Free shipping on all accessories purchased with a gate opener
    • We stock all replacement parts
    • Many brands of many types of accessories, enough to handle just about any operational situation you can imagine
    top right has actual experience. We have a testing area, we have factory and internal training courses, we build gates and have our own gates that are automated, we attended all industry trade shows in multiple countries and are a member of the AFA, and we pay visits to our chosen manufacturers' factories. All these factors are what have lead to us having so many exclusive additions. When you see and actually use as many products as we have you tend to have many ideas for minor changes that have major impacts. We acted on these ideas and have utilized them to help thousands of customers automate their gates.
    bottom left bottom right
       Tools & Supplies for Installation

    The following tools and supplies are suggested in the manufacturer manual for optimal installation. They are not provided by GateCrafters, however, most tools are available at local hardware stores for purchase or rental.

    • Please refer to manual for Tools Needed.

    Depending on the type of gate, power supply and contributing environmental factors additional tools or supplies may be needed. Please review the product manual associated with this gate opener model for further details.
       Words from Senior Application Engineer, Anthony Gaeto

    “The LiftMaster LA400 and LA400 Dual plug in gate openers are rated by Gate Crafters for gates between the lengths of 10 and 14 feet. This kit includes your choice of control box enclosure as well as your choice of transmitter.

    The arm on the LiftMaster LA400 features a lockable release that allows you to unlock the arm and manual operate your gate. The motor on the LA400 is approximately 2 and 1/4 inches in diameter and about 4 inches in length. The worm drive transmission on the LA400 features gears that are made of stainless steel and brass. This transmission spins a shaft that controls both the limit switches and screw drive. The shaft that spins the screw drive rides on sealed ball bearings. This gate opener has 3 limit switches. Two of the limit switches tells the control board when the arm is either in the open or closed position and the 3rd limit switch tells the gate opener when the gate is unlocked. One downside of this type of limit switch, is that they are prone to contamination. At some point in time, these limit switches may need to be replaced due to dirt getting inside of them.

    The LiftMaster LA400 is available with your choice of control board enclosures. The larger control board enclosure can house a larger battery and is easier to wire. The larger control board enclosure can hold two 12 amp hour batteries, which you provide. The standard control board enclosure comes complete with 2 7 amp hour batteries. Each enclosure comes with the same control board, that has all the necessary plugins for the accessories you wish to use. This control board is compatible with various accessories such as: exit loops, locks, entry devices, safety devices, exit wands, and edge devices.

    Gate Crafters gives you the option to choose the transmitter that you want. When you order your LiftMaster LA400 from Gate Crafters, you have the option of choosing either LiftMaster transmitters or Estate Swing transmitters. When you choose the Estate Swing transmitters you will be able to easily add on other great inexpensive Estate Swing accessories such as wireless key pads. Also the Estate Swing transmitters are less expensive than the LiftMaster transmitters. We have also successfully tested the Estate Swing transmitters up to 1400 feet away from the receiver.

    I started Gate Crafters in 2002 with the goal to provide my customers with high quality gate opener and gate opener accessories. Gate Crafters has technical support 7 days a week from 9 am to 9 pm, eastern time. When you are buying your gate opener, our experts can help you put together a complete package so your gate operates the way you want it to. So please give us a call, send us a email, or use our live chat and we are more than welcome to help you out. We look forward to hearing from you."

       Factory Visit Updates
    Liftmaster/Chamberlian's domestic operations are located in Elmhurst, IL and maintains a wide reaching branch of international offices. Its manufacturing has been in Mexico for more than 20 years. In business for over 100 years this company is well known for its garage door, gate operators and other access oriented innovations.
       Customer Installations
    LA 400 Dual Gate Opener Installation Liftmaster LA 400 Gate Installation Liftmaster LA 400 Gate Opener Installation Liftmaster LA 400 Gate Opener Installation
    Multimeter Submit a photo of an LA-400. All submissions receive a FREE Multimeter.
    Email them to
       Customer Testimonials
    I bought the opener to install on my one of my costumer's gates that we built for their home. I was a little paranoid when she and her 2 year old son came out and watched the whole setup process. But, to my surprise, this was the first opener I have installed and it took no time at all to get it fully operational. The manual was very easy and it just took a few steps to set it up. It is working great now.
    Thanks, Liftmaster and the people at Gate Crafters. You made my life easy with the ease of ordering and install.
    Eric S.
    Crimmins Construction

    Write a testimonial for this product. Please send them to
       Product Media

    Manual: la400dc_manual
    Manual: LA 400 PKGU Generation 3 Installation Manual (Newer Manual)
    Manual: LA 400DC Generation 2 Manual (Older Manual)
    QB ID: LA400-Single

       Reviews Top of Page
    Rating Snapshot

    Select a row below to filter reviews
    Average Customer Rating

    Reviews (5)
    << < > >>